Sourcing powerful magnifying glass

[JoeJoe]

Sourcing powerful magnifying glass

Many years ago (20+) I used to live next to a (industrial) lens factory, and our neighbour who used to work there brought me a damaged magnifying glass. See a couple of photos here:

is much more powerful than the average ones that you can easily get, and I have used it ever since.

I now want another similar one, but looking online doesn't seem to bring up anything.

Any pointers will be much appreciated.

TIA.

PS: the factory no longer exist, and is more that 5000 miles away anyway?

[Thomas Prufer]

Maybe "dome magnifier" as your search term?

Thomas Prufer

[therustyone]

How big is it ? 1 cm - 10 cm.

rusty

[fredddie]

This looks like a condenser lens from an old-style photographic enlarger. Try your local camera club; they may have a redundant lens lying about, or they may be able to point you in the right direction. fredddie

[SS]

This looks like a condenser lens from an old-style photographic enlarger. Try your local camera club; they may have a redundant lens lying about, or they may be able to point you in the right direction. fredddie

Or it could be a lense out of the old bicycle carbide lamps.

[Dave]

I have picked up all mine from old slide projectors.

Dave

[Ericp]

Go look on ebay for Gnome Beta II enlarger. The condensers inside them looked exactly like that and were quite big

[Derek Geldard]

[Snip]

They used to be used for looking for small abnormalities on X-ray flims. Unfortunately nowadays X-rays are almost 100% digital. Probably also for other inspection tasks.

This is an example of what used to be available for USD 53. ;-)

magnification (used to be) 4x.

If 5" dia with mag. 2.5 will do (Like Sherlock Holmes) send me an email.

Derek G

[polygonum]

Is there anything useful here?

(No connection - not even as a customer. Though I do own one for the =

Belomo loupes they also offer.)

[Andy Dingley]

Most of mine come from Quicktest. Good honest reports of their products: they sell good stuff, they sell (some) cheap stuff, they tell you honestly which is which.

love my Zeiss headband magnifier. More expensive than an Optivisor, but there's a big difference in the image quality you get.

[Brian Gaff]

Certainly there are a lot of Dome magnifiers about, even the freznel ones made of plastic are quite good and a lot lighter than a huge lump of glass.

Brian